期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1975
卷号:72
期号:10
页码:4081-4084
DOI:10.1073/pnas.72.10.4081
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:Mutations in the viral gene coding for the thymidine kinase (ATP:thymidine 5'-phosphotransferase, EC 2.7.1.75 ) induced by herpes simplex virus have been obtained by selection of virus resistant to bromodeoxyuridine when grown in thymidine-kinase-deficient LMTK- mouse cells. Proteins labeled after infection of Vero (monkey) cells with herpes simplex virus were analyzed by gel electrophoresis and one protein of about 40,000 daltons was consistently altered in a number of thymidine-kinase-deficient mutants. Many viral mutants lacked this peptide and one class of these mutants induced the synthesis of new shorter peptides. Revertant virus could be selected which simultaneously regained the ability to induce thymidine kinase activity, regained the intact thymidine kinase peptide, and lost the ability to synthesize the shorter peptide fragment. These mutants comprise a class of animal virus mutants which have the properties expected of peptide chain termination mutants.